From: Sameer Pujar <spujar@nvidia.com>
To: Jaroslav Kysela <perex@perex.cz>,
broonie@kernel.org, lgirdwood@gmail.com, tiwai@suse.com
Cc: jonathanh@nvidia.com, thierry.reding@gmail.com,
alsa-devel@alsa-project.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ASoC: tegra: Add master volume/mute control support
Date: Wed, 3 Nov 2021 10:42:53 +0530 [thread overview]
Message-ID: <c583b8bd-e032-e0d5-059b-1d13736d22e1@nvidia.com> (raw)
In-Reply-To: <f709fcff-1bd4-1251-1471-aad01fdfdedd@perex.cz>
On 10/29/2021 8:56 PM, Jaroslav Kysela wrote:
> External email: Use caution opening links or attachments
>
>
> On 29. 10. 21 17:08, Sameer Pujar wrote:
>>
>>
>> On 10/26/2021 11:53 AM, Sameer Pujar wrote:
>>>
>>>
>>> On 10/25/2021 6:28 PM, Jaroslav Kysela wrote:
>>>> On 25. 10. 21 13:06, Sameer Pujar wrote:
>>>>
>>>>> @@ -150,11 +186,22 @@ static int tegra210_mvc_put_mute(struct
>>>>> snd_kcontrol *kcontrol,
>>>>
>>>> ...
>>>>>
>>>>> return 1;
>>>>
>>>> It's a bit unrelated comment to this change, but it may be worth to
>>>> verify all
>>>> kcontrol put callbacks in the tegra code. Ensure that value 1 is
>>>> returned only
>>>> when something was really changed in hardware.
>>
>> There are cases when the mixer control update is not immediately written
>> to HW, instead the update is ACKed (stored in variable) and writen to HW
>> at a later point of time. Do these cases qualify for "return 1" as well?
>
> Yes - assuming that the get callback returns the cached value. The
> get/put
> implementation should be consistent from the caller view. The driver
> implementation (delayed write) is a separate thing.
Thanks Jaroslav and Mark. I have now sent a separate series to fix
Tegra210 (and later) drivers.
prev parent reply other threads:[~2021-11-03 5:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 11:06 [PATCH] ASoC: tegra: Add master volume/mute control support Sameer Pujar
2021-10-25 12:58 ` Jaroslav Kysela
2021-10-26 6:23 ` Sameer Pujar
2021-10-29 15:08 ` Sameer Pujar
2021-10-29 15:22 ` Mark Brown
2021-10-29 15:26 ` Jaroslav Kysela
2021-11-03 5:12 ` Sameer Pujar [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c583b8bd-e032-e0d5-059b-1d13736d22e1@nvidia.com \
--to=spujar@nvidia.com \
--cc=alsa-devel@alsa-project.org \
--cc=broonie@kernel.org \
--cc=jonathanh@nvidia.com \
--cc=lgirdwood@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=perex@perex.cz \
--cc=thierry.reding@gmail.com \
--cc=tiwai@suse.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).